| Component | vLLM |
| Severity | medium (CVSS 4.3) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| Published (NVD) | 2026-10-06 |
| Last modified | 2026-10-09 |
| Affected versions | <= 0.31.0 read from the advisory text: NVD has not published CPE data yet |
| Fixed in | see the vendor advisory |
| Weakness | CWE-119CWE-125 |
| CISA KEV | not listed |
NVD description
A security vulnerability has been detected in vllm-project vLLM up to 0.31.0. This impacts the function conv_ssm_forward of the file vllm/model_executor/layers/mamba/mamba_mixer2.py of the component Completions Request Handler. The manipulation leads to out-of-bounds read. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.
What to do
- NVD lists no fixed version yet: follow the vendor advisory below and keep vLLM off the public internet until a fix ships.
- Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-105775
- https://github.com/vllm-project/vllm/
- https://github.com/vllm-project/vllm/issues/57266
- https://vuldb.com/cve/CVE-2026-105775
- https://vuldb.com/submit/992291
- https://vuldb.com/vuln/413808
- https://vuldb.com/vuln/413808/cti
Read more
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